Yarn-sizing machine and method of operation thereof



Spt. 15. 1925.

G. F. SLIFP YARN SIZING MACHINE AND METHOD OF OPERATION THEREOF 1922 2,Sheets-Sheet 1 Filed May 22 Sept. 15, 1925.

1,553,403 G. F. SLIPP YARN SIZING MACHINE AND METHOD OF OPERATIONJIHEREOF Filed May 22, 1922 4 2 shun-sum 2 a I l O I i T za 2o fl 51 n29g O 1' :5 if

26 as o 1 I f 7 Z8 24' A Patented Sept. 15, 1925.

eaten:

GEORGE IE. SLIPP. or LOWELL, Massachusetts, AssreNon T0 sAoo-LowELnsnore,

or BosTon, MAsseoHU-snrrs, conronarionen inassaonusn'rrrs;

YARN-SIZING ac ne AND METHOD on ornna'rron HEREOF.

Application filed 111a 22, 1922. Serial No. 562,629.

To all whom it may concern:

Be it known that I, Gnomes F. Smrr, a citizen of the Dominion of Canada,residing at Lowell, in the" county of Middles'ex and Commonwealth ofMassachusetts, have invented new and useful Improvements in Yarn-SizingMachines and Methods of operation Thereof, of which the followingis aspecification.

This invention relates to improvements in so-called Slashers or machinesfor sizing warp yarns, and to methods of operating the same during thetying. in of the yarn ends, and its object isto-allow the, saving oflarge quantities of yarn which under prevailing practice have to bethrown away each time a new set of yarns is inserted in the machine. i

The invention relates particularly to.

mechanism incorporated in such machines,

whereby it is made possible to continue to rotate the size rolls in thesizing vat tank, while the rest of the machine is not in operation.

In the machines of the character referred to, when a new set ofwarpyarns is' to he introduced into the machine, the machine is stoppedfor the considerable period necessary to enable. the operator to countin the new ends, and in such machines, as now in use, the size rolls,which constitute one element of the machine and which are partiallyimmersed in the sizing material, are stopped with the other parts of themechanism, with the result that a scum forms on the surface of thesizing in the tank and the sizing, moreover, becomes hardened on thesize rolls, particularly along linesfat the top level of the sizing, andthen when the machine is started up, this harden-ed sizing, coming incontact with the yarn, gums the yarns together-causing trouble the yarnspass through the comb. If this is to be avoided, the rolls must becleaned off to remove the hardened size, and the scum, moreover, has tobe removed from the top of the sizing in the vat. w

When, therefore, with machines as at present organized, a new set ofends is to be counted in, which operation must he performed at the frontend of the machine. it is inevitable that there will be a defectiveportion in the yarn ata distance from the front end of the new set aboutequal to the distance of travel of the yarn fromthef size rolls to thedelivery roll, whichis usually a matter of 2501 30 yardsfunless" thesize rolls are cleaned off after the new set is counted in and beforethe machine is started again. Accordingly, it is the customary practiceat the present time, at least in pat tern work and sometimes in plainwork, not to attempt to size these first 25 or 30 yards of the new setat all, butto' cut them off and discard them as waste, rather than totake the time to clean off the size' rolls. Moreover, in any case, thescum must be re'moved'from the sizing in the tank.

By the use of my invention all but a small part of this heretoforewasted yarn is saved, and the formation of a scuin on the sizing isavoided.

In the accompanying drawings,

Figure 1 is a diagrammatic side elevation of a slasher or sizingmachine, with-parts of the mechanism hereinafter referred to omit tedfor thesake of clearness,

Fig. 2' is an elevation showing in part the clutch mechanism hereinafterreferred to, looked at from the side of the machine; and

Fig. 3 is a sectional view of said clutch mechanism, on the line of Fig.2.

Referring to Figure 1,-1, 1, 1, indicate yarn beams from which yarn asindicated at a passes to a sizing tank 23,- mounted in a suitablefran'1ework 3, and filled with sizing, as usual, to a level high enoughto submerge the lower portions of the size rolls 4, 4. The yarn passesfrom the yarn beams over the guide rolls 5, 5; thence into the sizingunder the immersion roll 6; thence between the first size roll a and theco-operating upper squeez roll 7; thence between the second size roll fand the co-operating upside of the machine, which carries a bevel gear14 which bevel gear drives, by well known intermediate gearing, theshafts of the two siz rolls.

The mechanism thus far described is common to slashers now in use andrequires no detailed description.

In machines of this class as heretofore in use, the shaft through whichpower is transmitted to thesize rolls has been so connected up with themechanism for driving the delivery roll that the delivery roll isrotated at all times when the size rolls rotate, so that it isimpossible to stop the progress of the yarn through the machine withoutalso stopping the rotation of the size rolls.

1 have provided mechanism whereby the delivery roll of the machine maybe stopped without stopping the rotation of the size rolls thismechanism being shown in detail in Figs. 2 and 3.

Referring to these figures, 15 is a shaft mounted in suitable bearings,one of which is indicated at 16, which carries the delivery roll 10.Upon an extension 15 of this shaft is mounted the centrally bored gearmember 17, which is free to rotate on the shaft 15 and which carries thetwo gears 18 and 19, these two gears, therefore, always rotating inunison. A collar. 17 provided on shaft 15 holds the member 17 in properposition longitudinally of the shaft.

Power fordriving the machine is trans- .mitted to the mechanism throughthe gear 18, which meshes with a suitable driving gear, not shown. Gear19 meshes with a bevel gear 20, mounted on the front end of the shaft14. Rotation of gear 18, therefore, causes the rotation of said shaft14, and thereby of the size rolls 4? and t, through the intermediategearing heretofore men tioned.

21 is a clutch member which as shown consists of an inner sleeve 22 andan outer sleeve 23, rigidly connected therewith in any suitable manner,the clutch member being mounted on the extension 15" of the shaft 15 andbeing keyed thereto by means of the key 24, so that rotation of theclutch member vi ill cause the rotation of the shaft 15, 15, the clutchmember being, however, movable longitudinally on said shaft.

At the inner end of the clutch member are clutch teeth 25 adapted toengage with clutch teeth 26 carried by the gear 18 when the parts are inthe position indicated in Fig. 3, so that when the parts are in thisposition rotation of the gear 18 causes the rotation not only of thesize rolls but also of the delivery roll 10. 27 is a lever forcontrolling the, clutch, which is pivoted at 28 upon a bracket attachedto the frame of the machine, 28, and carries at its end a fork 29, whichengages in a peripheral groove 30 in the clutch member by means of pins31 carried by the fork. By moving this lever, therefore, the clutchmember may be moved out of engagement with the gear 18, and thereby thedelivery roll may be stopped without stopping the size rolls.

The lever is provided with a latch 32 of well-known form for locking thelever, so as to hold the clutch either in operative or in inoperativeposition.

The mechanism above described enables me to continue the rotation of thesize rolls of the machine during the time when the delivery roll isstopped, so that the yarn is not being fed through the machine; and bykeeping the size rolls constantly rotating during the periods when themachine is shut down, I prevent any deposit of hardened sizing upon thesize rolls and prevent the formation of any scum on the surface of thesizing.

lVith a machine equipped with the mechanism above described, when a newset of ends is to be tied in, the clutch is disconnected so as to stopthe delivery roll and the upper squeeze rolls 7 and 7 and the immersionroll 6, are raised in usual manner. Then when the machine is to bestarted again, these rolls are replaced and the clutch moved intoengaging position so as to startthe delivery roll.

W hat I claim as new and desire to secure by Letters Patent is z- 1. Ina yarn sizing machine, a sizing tank, size rolls therein, a deliveryroll, a delivery roll shaft, a gear member mounted loosely on anextension of said shaft and operatively connected with the size rolls, aclutch member keyed to said shaft and movable longitudinally thereon,and means for engaging and disengaging said clutch member with said gearmember. q

2. The method of operation during the tying-in of the ends in ayarn-sizing machine which consists in stopping the passage of the yarnthrough the machine by stopping the delivery roll and removing the uppersqueeze rolls from the size tank, and continuing the rotation of thesize rolls in the size tank.

3. The method according to claim 2 in which the immersion roll and theyarn are removed from the size tank.

In witness whereof I have signed my name to this specification.

GEORGE r. sure

